Diana and Mary's general answer to this question was a sigh, and some minutes of apparently mournful meditation.

     But besides his frequent absences, there was another barrier to friendship with him: he seemed of a reserved, an abstracted, and even of a brooding nature. Zealous in his ministerial labours, blameless in his life and habits, he yet did not appear to enjoy that mental serenity, that inward content, which should be the reward of every sincere Christian and practical philanthropist. Often, of an evening, when he sat at the window, his desk and papers before him, he would cease reading or writing, rest his chin on his hand, and deliver himself up to I know not what course of thought; but that it was perturbed and exciting might be seen in the frequent flash and changeful dilation of his eye.